Wang Kai-ying, Liu Jian, Chen Xiao-xia, Dai Xiao-rong, Feng Shang-lian
School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China.
Ying Yong Sheng Tai Xue Bao. 2009 Dec;20(12):3043-8.
Based on the investigation of pollutant production and discharge from a typical scale pig farm in Zhejiang Province at three pig growth stages (piglets, fattening pigs, and sows) in the autumn and winter 2007 and the spring and summer 2008, the coefficients of pollutant production and discharge from the pigs as well as the total annual pollutant production and discharge from the farm were estimated. In the meantime, the annual application amount of animal manure to the farmlands in Zhejiang Province was estimated by using these coefficients and the livestock and poultry inventories in Zhejiang Province in 2007. It was estimated that the total amount of applied animal manure in the Province in 2007 was 2106.8 x 10(4) t x a(-1), containing 13.57 x 10(4) t x a(-1) of N, 6.7 x 10(4) t x a(-1) of P, 0.11 x 10(4) t x a(-1) of Cu, and 0.20 x 10(4) t x a(-1) of Zn. The pig-manure-equivalent farmland carrying capacity in the Province was 16.66 t x hm(-2) a(-1), and the average alarm limit was 0. 37. The application of animal manure in some areas of Zhejiang Province had exceeded the alarm limit for the land carrying capacity, and made a potential environmental threat.
通过对浙江省某典型规模化养猪场在2007年秋冬和2008年春夏三个生猪生长阶段（仔猪、育肥猪和母猪）污染物产生与排放情况的调查，估算了生猪污染物产生与排放系数以及该养殖场全年污染物产生与排放总量。同时，利用这些系数和2007年浙江省畜禽存栏量，估算了浙江省农田畜禽粪便年施用量。据估算，2007年全省畜禽粪便施用总量为2106.8×10⁴t·a⁻¹，其中含氮13.57×10⁴t·a⁻¹、磷6.7×10⁴t·a⁻¹、铜0.11×10⁴t·a⁻¹、锌0.20×10⁴t·a⁻¹。全省猪粪当量农田承载能力为16.66t·hm⁻²·a⁻¹，平均警戒限为0.37。浙江省部分地区畜禽粪便施用已超过土地承载能力警戒限，对环境构成潜在威胁。
