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| 1 | 森林生态系统服务价值及其补偿校准——以马尾松林为例显示文摘森林补偿资金分配与生态系统服务脱钩,是长期以来制约森林生态保护制度发挥作用的关键因素。建立森林生态保护成效与资金分配挂钩的激励约束机制,对于完善生态补偿制度、保障国家生态安全具有重要意义。以马尾松林为例,运用野外调查、实验室实验等方法,精准计量评价马尾松林的固碳、水源涵养、固土保肥、生物多样性等4种主要生态系统服务;以皮尔(R.Pearl)生长曲线为基础构建生态补偿算法,测算基于生态系统服务价值的马尾松林补偿标准。第一,马尾松林生态系统服务价值为10335.86—16358.06元hm^(-2)a^(-1),固碳价值为165.93—521.03元hm^(-2)a^(-1),水源涵养价值为5024.47—11788.30元hm^(-2)a^(-1),固土保肥价值为3597.84—6405.04元hm^(-2)a^(-1),生物多样性价值为178.57—1346.15元hm^(-2)a^(-1)。第二,固碳价值、固土保肥价值在空间上呈现出随纬度增加而减小的格局,水源涵养价值、生物多样性价值与前两者分布格局相反。植被类型、经营方式影响马尾松林生态系统服务价值,混交林生态系统服务价值大于纯林,间伐补植的马尾松林生态系统服务价值高于皆伐后营造的林分。第三,马尾松林生态系统服务补偿标准为0.15×10~3—1.43×10~3元hm^(-2)a^(-1),大小主要受生态系统服务单价影响。本研究为森林生态系统服务精确计量评价、森林生态系统服务补偿标准的确定提供科学量化的依据。 | 吴强 PENG Yuanying 马恒运 张合平 刘奕汝 | 2019 | 生态学报2019,39,1: | 29 |
| 2 | Impacts of changed litter inputs on soil CO_2 efflux in three forest types in central south China显示文摘Climate change is expected to cause the alteration of litter production in forests,which may result in substantial changes in soil CO2 efflux (FCO2) process as litter represents a major pathway of carbon from vegetation to the soils.In this study,we conducted an aboveground litter manipulation experiment to examine the influence of litter addition and exclusion on soil FCO2 in Camphor tree,Masson pine,and mixed Camphor tree and Masson pine forests in central south China.Litter input manipulation included three treatments:non-litter input (litter exclusion),double litter input (litter addition),and natural litter input (control).On average,litter exclusion significantly reduced soil FCO2 rate by approximately 39%,24% and 22% in Camphor tree forests,the Mixed forests,and Masson pine forests,respectively.On a yearly basis,double litter addition significantly increased soil CO2 by 12% in the Mixed forests (P=0.02) but not in both Camphor tree and Masson pine forests (P>0.05),when compared with their corresponding control treatments.However,litter addition increased soil FCO2 rates in the months of June-August in Camphor tree and Masson pine forests,coinciding with high soil temperature of summer conditions.Litter exclusion reduced soil FCO2 more than litter addition increased it in the study sites.Responses of soil respiration to litter input treatments varied with forest types.Litter input treatments did not alter the seasonal patterns of soil temperature and soil water content.Our results indicated that changes in aboveground litter as a result of global climate change and/or forest management have a great potential to alter soil respiration and soil carbon balance in forest ecosystems. | YAN WenDe CHEN XiaoYong TIAN DaLun PENG YuanYing WANG GuangJun ZHENG Wei | 2013 | Science China(Technological Sciences)2013,56,3: | 11 |
| 3 | Response of soil respiration to nitrogen addition in two subtropical forest types显示文摘Anthropogenic activities have increased nitrogen(N)deposition in terrestrial ecosystems,which directly and indirectly affects soil biogeochemical processes,including soil respiration.However,the effects of the increases in N availability on soil respiration are not fully understood.In this study,soil respiration was measured using an infrared gas analyzer system with soil chambers under four N treatments(0,5,15,and 30 g Nm^-2 year^-1 as control,low N(LN),moderate N(MN),and high N(HN),respectively)in camphor tree and slash pine forests in subtropical China.Results showed that soil respiration rates decreased by 37% in the camphor tree forest and 27% in the slash pine forest on average on an annual base,respectively,in the N-fertilized treatments when compared with the control.No significant differences were found in the soil respiration rate among the LN,MN,and HN treatments in both forest types as these fertilized plots reached an adequate N content zone.In addition,soil microbial biomass carbon(C)content and fine root biomass declined in N-treated plots compared to the control.Our results indicated that elevated N deposition might alter the tree growth pattern,C partitioning,and microbial activity,which further affect soil C sequestration by reducing soil respiration in subtropical forests of China. | Wende YAN Xiaoyong CHEN Yuanying PENG Fan ZHU Wei ZHEN Xuyuan ZHANG | 2020 | Pedosphere2020,30,4: | 6 |
| 4 | Fatty acid metabolism and cancer development显示文摘尽管癌症的类型和病原学是不同的,在葡萄糖新陈代谢,戊糖磷酸盐小径(PPP ) 和夫酸安新陈代谢的小径是在癌症细胞的 reprogrammed 适应他们的快速的生长和增长。最近的研究也显示出那多重类脂化合物新陈代谢的小径在癌症房间被改变。这里,我们在癌症开发为丰满的酸新陈代谢的角色向简短评论提供丰满的酸的一个特殊焦点举起和 de novo 合成, triglycerides 合成,存储和降级。在丰满的酸新陈代谢的 Reprogramming 在在癌症开发期间提供精力,为膜合成的大分子和类脂化合物信号起重要作用。理解在癌症房间的新陈代谢的小径将揭示的 deregulated 类脂化合物的机制与癌症作斗争的新奇治疗学的途径。 | Yuanying Chen Peng Li | 2016 | Science Bulletin2016,61,19: | 5 |
| 5 | Photo- synthesis, growth and yield of soybean and maize in a tree- based agroforestry intercropping system on the Loess Plateau 显示文摘 | Peng Xiaobang Zhang Yuanying Cai Jing etal | 2009 | Agroforestry Systems2009,76,3: | 1 |
| 6 | Photosynthesis, growth and yield of soybean and maize in a tree-based agroforestry intercropping system on the Loess Plateau显示文摘 | Xiaobang Peng Yuanying Zhang Jing Cai Zaimin Jiang Shuoxin Zhang | 2009 | Agroforestry Systems2009,,3: | 1 |
| 7 | Accurate displacement measurement via a self-adaptive digital mage correlation method based on a weighted ZNSSD criterion 显示文摘 | YuanY Huang J Y Peng X L | 2014 | Optics and Lasers in Engineering2014,,52: | 1 |
| 8 | Optimality conditions for the minimization of a quadratic with two quadratic constraints显示文摘 | PENG J M YUANY | 1997 | SIAM Journal of Optimization1997,7,: | 1 |
| 9 | Effects of Mg on C and N Metabolism of Soybean at Different Nitrogen Supplying Levels显示文摘A pot experiment was conducted to study the effects of magnesium on carbon and nitrogen metabolism of soybean at different nitrogen supplying levels. The results showed that the effects of magnesium at low nitrogen rate on N content, soluble protein, soluble sugar contents were not alike at different growth stage, although nodule dry weights raised, the yield and protein content of seeds decreased, however, the oil content was improved. The application of magnesium at medium and high nitrogen supplying levels promoted the uptake of N effectively, increased the soluble protein and soluble sugar contents, but the nodule dry weights of application magnesium at medium nitrogen supplying level decreased and the yield increased only a little despite the improved quality. Application of magnesium at high nitrogen supplying level raised nodule dry weights and soybean yield significantly, the quality of seeds was also improved. | LANG Man LIU Yuanying PENG Xianlong ZHANG Wenzhao | 2006 | Journal of Northeast Agricultural University(English Edition)2006,13,1: | 0 |